Home / 142,275.19-213,517.91-67,395.64

Finding the Fourth Proportional to 142,275.19, 213,517.91 and 67,395.64

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Solution

The fourth proportional to 142,275.19, 213,517.91 and 67,395.64 is: 101,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,275.19 : 213,517.91 = 67,395.64 : x
  2. Step 2: Convert to fraction form
    142,275.19/213,517.91 = 67,395.64/x
  3. Step 3: Cross multiply
    142,275.19x = 213,517.91 × 67,395.64
  4. Step 4: Simplify right side
    142,275.19x = 14,390,175,830.61
  5. Step 5: Solve for x
    x = 14,390,175,830.61/142,275.19
  6. Step 6: Final answer
    x = 101,143.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.